HIGHWAY PERFORMANCE MONITORING SYSTEM A state and national data system consisting primarily of: • Roadway Inventory • Traffic data • Pavement data The complete listing of data catalogs with all of the data items is available in the FHWA’s HPMS Field Manual found here: http://www.fhwa.dot.gov/policyinformation/hpms/fieldmanual/
o ADT (or AADT) o Peak Hour Volume (or K Factor). o D Factor o Truck Percentages o Forecast Traffic
Passenger Vehicles Single-Unit Trucks Combination-Unit Trucks These are negligible
A Public Road • A public road is any road or street owned and maintained by a public authority and open to public travel. [23 U.S.C. 101(a)]. • … must be … passable by four -wheel standard passenger cars, and open to the general public for use without restrictive gates, prohibitive signs, or regulation ... [23 CFR 460.2(c)]
Functional Classification Conversion Table Old FC Code New FC Code 1, 11 Interstate 1 Other Freeways and 12 2 Expressways 2, 14 Other Principal Arterial 3 6,16 Minor Arterial 4 7, 17 Major Collector 5 8 Minor Collector 6 9, 19 Local 7
State Highway Traffic Data Traffic and Vehicle Data Systems Unit http://www.dot.ca.gov/hq/traffops/saferesr/trafdata/index.htm Caltrans traffic counts are summarized annually into three reports: • Traffic Volumes • Annual Average Daily Truck Traffic • Ramp Volumes These may be downloaded from this site (PDF or Excel Files).
For more information Contact us: Craig Wahl Phone: (916) 654-2980 E-mail: craig.wahl@dot.ca.gov Brian Domsic Phone: (916) 653-3272 E-mail: brian.domsic@dot.ca.gov This presentation is available at the HPMS web site: http://www.dot.ca.gov/hq/tsip/hpms/index.php
Can you update them or replace with a more recent data file? If you have not yet turned in a data file, either for traffic or pavement data, please consider placing one here: ftp://data.scag.ca.gov/
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